Disk assembly for tamping rollers



Oct. 17, 1950 J, cfRENAULT 2,526,158

DISK ASSEMBLY FOR TAMPING ROLLERS Filed Jan. 8, 1946 INVENTOR. J. CZRena u. Zt

mi vwull Patented Oct. 17,- 1950 isn- ASSEMBLY FOR TAMPING ROLLERS Jean C. Renault, Salinas, Cali-L, assignor to Farmers Mercantile Company, Salinas, Califi, Q "(a corporation of'Oaliforniav:

Application January 8, 1946, Serial No. 639,794

1 Claim. ,(Cl. 55,47)

This invention relates generally to a soil tillingimplement,--and in particular the invention is directed to an improvement in a tractor-drawn soil pulverizer of the type which includes a transverse drum having a plurality of soil pulverizing rings thereon in turnable end to end relation.

One object of the present invention is to provide a pulverizer ring, for use in an implement as above. comprising a pair of initially separate ring sections formed to detachably engage together in symmetrical unitary relation; one section including, at the periphery, an annular, radially outwardly projecting ground working rim substantially triangular in cross section, and the other section being of lesser diameter and socketed in said one section inwardly of the peripheral or working edge of said rim. By reason of this arrangement only one half of each ring need be replaced when the working edge of said one section of the ring wears out.

Another object of the invention is to provide a sectional pulverizer ring. as in the preceding paragraph, in which each ring section includes a hub having an annular skirt projecting outwardly therefrom, said skirts converging toward each other. and one skirt including, at the periphery,

' the annular ground working rim which projects radially outwardly beyond the other skirt; there being a laterally o ening annular seat formed in the base portion of said rim, and the adjacent peripheral portion of said other skirt being matchin ly socketed therein.

A further object of the invention is to produce a simple and inexpensive d vice, and yet one whichwill be exceedingly effective for the purpose for which it is designed.

These objects'are accomplished by means-of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claim.

" The hubs 3 and 4 are formed with annular skirtsgindi-cated at 5* and 6, respectively, which project radially outwardly in converging relation to each other.

At its periphery the skirt "6 is formed with an annular, radially outwardly projecting, ground working'rim I which is substantially triangular in cross section, and which feathers out to a working'edge 8.

In its base portion the ground working rim 1 i formed with an annular, laterally outwardly opening seat or socket 9 which is rounded in cross section.

a The adjacent or peripheral edge of the annular skirt 5 of the ring section I is formed to matchingly engage in the seat or socket 9, and

so that the contiguousfaces of the annular skirt 5 and ground working rim are substantially flush to each other.

As so engaged together the ring sections l and 2 form a pulverizer ring, indicated generally at l0. which is wholly symmetrical, and said symmetrical rings-when in use-are mounted in end to end relation on an elongated, transversely extending supporting drum I I. Displacement of the unitary rings l0 along said drum, or separation of the sections I and 2 of each ring, is prevented by clamp collars I2 fixedto said drum at each end thereof. The drum H is turnably carried in a draft frame (not shown) by means of stub. shafts 13 which project outwardly from each end of said drum.

The main advantage of the above described sectional pulverizer ring resides in the fact that when the working edge 8 of the ground working rim 1 wearsdown to an extent that it cannot be repaired, only one-half of the vpulverizer ring need be discarded; i. e. the ring section 2. A new ring section 2 is substituted for the worn one and In the drawings similar characters of reference indicate corresponding parts in the several Views: Figure 1 is an elevation, approximately half in section, of a plurality of the improved pulverizer .rings as incorporated in an implement.

is used in connection withthe original ring section'l. Thisprovides an economy in operation,

and in addition reduces materiallyjthe weight,

bulk, and cost of replacement parts which must be maintained. v y

The pulverizer ring is produced from cast iron or steel, and the ring section 2 maybe cast with V the rim 1 so that the working edge 8 is either From the foregoing description it will be readily seen that there has been produced such a device as substantially fulfills the objects of the invention as set forth herein..

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, a defined by the appended claim.

Having thus described the invention, the following is claimed as new and useful and upon which Letters Patent are desired:

A ground pulverizing roller assembly comprising a supporting shaft, a drum fixed on the shaft, a plurality of soil pulverizing ring units mounted loosely on the drum for independent rotation on such drum, each ring unit consisting of two separable loosely inter-fitting annular skirt sections, 5

an outwardly projecting ground working rim on one of the skirt sections of each unit, the ring units having hubs disposed in substantially contiguous relation along the length of the drum, and a clamping collar secured adjacent each end of the drum independently of the ring units and immediately contiguous to the hubs of the outer- -most ring units whereby to prevent relative enda 4 wise displacement of the ring units or relative separation of the inter-fitting skirts of such units.

JEAN C. RENAULT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 10 Number Name Date 1,444,224 Wagner Feb. 6, 1923 1,497,779 Garst June 17, 1924 1,594,639 Sousa Aug. 3, 1926 1,857,753 Gausche May 10, 1932 1,884,803 Miller Oct. 25, 1932 2,040,710 Riehl May 12, 1936 2,187,443 Beamer Jan. 16, 1940 2,404,535 Schmeiser July 23, 1946 FOREIGN PATENTS 0 Number Country Date 121,268 Germany June 14, 1901 398,808 Germany July 19, 1924 

